package com.host.dyyl.view;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.view.View;

import com.host.dyyl.R;


/**
 * Created by  on 2017/3/31.
 */

public class RoundProgressBar extends View {

    /**
     * 画笔对象的引用
     */
    private Paint paint;

    /**
     * 圆环的颜色
     */
    private int roundColor;

    /**
     * 圆环进度的颜色
     */
    private int roundProgressColor;

    /**
     * 按钮文字
     */
    private String buttonText;

    private int buttonTextColor = Color.BLACK;

    private float buttonTextSize;

    /**
     * 中间进度百分比的字符串的颜色
     */
    private int textColor;

    /**
     * 中间进度百分比的字符串的字体
     */
    private float textSize;

    /**
     * 圆环的宽度
     */
    private float roundWidth;

    /**
     * 最大进度
     */
    private int max;

    /**
     * 当前进度
     */
    private int progress;
    /**
     * 是否显示中间的进度
     */
    private boolean textIsDisplayable;

    private float startAngle;

    /**
     * 进度的风格，实心或者空心
     */
    private int style;

    public static final int STROKE = 0;
    public static final int FILL = 1;

    public RoundProgressBar(Context context) {
        this(context, null);
    }

    public RoundProgressBar(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public RoundProgressBar(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        paint = new Paint();

        TypedArray mTypedArray = context.obtainStyledAttributes(attrs,
                R.styleable.RoundProgressBar);
        //获取自定义属性和默认值
        roundColor = mTypedArray.getColor(R.styleable.RoundProgressBar_roundColor, getResources().getColor(R.color.gray));
        roundProgressColor = mTypedArray.getColor(R.styleable.RoundProgressBar_roundProgressColor, getResources().getColor(R.color.orange));
//        buttonText = mTypedArray.getString(R.styleable.RoundProgressBar_buttonText);
//        buttonTextSize = mTypedArray.getDimension(R.styleable.RoundProgressBar_buttonTextSize, 15);
        textColor = mTypedArray.getColor(R.styleable.RoundProgressBar_textColor, getResources().getColor(R.color.colorAccent));
        textSize = mTypedArray.getDimension(R.styleable.RoundProgressBar_textSize, 50);
        startAngle = mTypedArray.getDimension(R.styleable.RoundProgressBar_startAngle, 0);
        roundWidth = mTypedArray.getDimension(R.styleable.RoundProgressBar_roundWidth, 8);
        max = mTypedArray.getInteger(R.styleable.RoundProgressBar_max, 100);
        textIsDisplayable = mTypedArray.getBoolean(R.styleable.RoundProgressBar_textIsDisplayable, true);
        style = mTypedArray.getInt(R.styleable.RoundProgressBar_style, 0);
        mTypedArray.recycle();
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        int center = getWidth() / 2;
        int radius = (int) (center - roundWidth / 2);
        paint.setColor(roundColor);
        paint.setStyle(Paint.Style.STROKE);
        paint.setStrokeWidth(roundWidth);
        paint.setAntiAlias(true);
        canvas.drawCircle(center, center, radius, paint);

//        //绘制buttontext
//        if (!TextUtils.isEmpty(buttonText)) {
//            paint.setStrokeWidth(0);
//            paint.setColor(buttonTextColor);
//            paint.setTextSize(buttonTextSize);
//            paint.setTypeface(Typeface.DEFAULT);
//            float buttonTextWidth = paint.measureText(buttonText);
//            canvas.drawText(buttonText, center - buttonTextWidth / 2, center - 2, paint);
//        }

        //绘制百分比text
        paint.setStrokeWidth(0);
        paint.setColor(roundProgressColor);
        paint.setTextSize(textSize);
        paint.setTypeface(Typeface.DEFAULT_BOLD);
        int percent = (int) (((float) progress / (float) max) * 100);
        float textWidth = paint.measureText(percent + "%");
        if (textIsDisplayable && percent != 0 && style == STROKE) {
//            canvas.drawText(percent + "%", center - textWidth / 2, center + textSize + 2, paint);
            canvas.drawText(percent + "%", center - textWidth / 2, center+textSize / 2, paint);
        }


        paint.setStrokeWidth(roundWidth);
        paint.setColor(roundProgressColor);
        RectF oval = new RectF(center - radius, center - radius, center + radius, center + radius);
        switch (style) {
            case STROKE:
                paint.setStyle(Paint.Style.STROKE);
                canvas.drawArc(oval, startAngle, 360 * progress / max, false, paint);
                break;
            case FILL:
                paint.setStyle(Paint.Style.FILL_AND_STROKE);
                if (progress != 0)
                    canvas.drawArc(oval, startAngle, 360 * progress / max, true, paint);
                break;
            default:
                break;
        }
    }

    public synchronized int getMax() {
        return max;
    }

    /**
     * 设置进度的最大值
     *
     * @param max
     */
    public synchronized void setMax(int max) {
        if (max < 0) {
            throw new IllegalArgumentException("max not less than 0");
        }
        this.max = max;
    }

    /**
     * 获取进度.需要同步
     *
     * @return
     */
    public synchronized int getProgress() {
        return progress;
    }

    /**
     * 设置进度，此为线程安全控件，由于考虑多线的问题，需要同步
     * 刷新界面调用postInvalidate()能在非UI线程刷新
     *
     * @param progress
     */
    public synchronized void setProgress(int progress) {
        if (progress < 0) {
            throw new IllegalArgumentException("progress not less than 0");
        }
        if (progress > max) {
            progress = max;
        }
        if (progress <= max) {
            this.progress = progress;
            postInvalidate();
        }

    }

    public int getCricleColor() {
        return roundColor;
    }

    public void setCricleColor(int cricleColor) {
        this.roundColor = cricleColor;
    }

    public int getCricleProgressColor() {
        return roundProgressColor;
    }

    public void setCricleProgressColor(int cricleProgressColor) {
        this.roundProgressColor = cricleProgressColor;
    }

    public String getButtonText() {
        return buttonText;
    }

    public void setButtonText(String buttonText) {
        this.buttonText = buttonText;
    }

    public int getTextColor() {
        return textColor;
    }

    public void setTextColor(int textColor) {
        this.textColor = textColor;
    }

    public float getTextSize() {
        return textSize;
    }

    public void setTextSize(float textSize) {
        this.textSize = textSize;
    }

    public float getStartAngle() {
        return startAngle;
    }

    public void setStartAngle(float startAngle) {
        this.startAngle = startAngle;
    }

    public float getRoundWidth() {
        return roundWidth;
    }

    public void setRoundWidth(float roundWidth) {
        this.roundWidth = roundWidth;
    }
}
